Simplify: (3x2 − 5xy + 2y2) − (7x2 − 3xy − 3y2) (5 points) −4x2 + 8xy − y2
−4x2 − 8xy + y2
−4x2 + 2xy − 5y2
−4x2 − 2xy + 5y2

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Someone me what is the area of this figure? 18m 18m 8m 16m

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?